Remove code_sharing and place_tracker, cleanup repo (#2831)

Fixes #2818, #2523, #2528

desktop_photo_search/fluent_ui/lib/main.dart

@@ -5,12 +5,10 @@
 import 'dart:io';
 
 import 'package:fluent_ui/fluent_ui.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:logging/logging.dart';
 import 'package:menubar/menubar.dart' as menubar;
 import 'package:provider/provider.dart';
-import 'package:window_size/window_size.dart';
 
 import 'src/model/photo_search_model.dart';
 import 'src/unsplash/unsplash.dart';
@@ -37,7 +35,7 @@ void main() {
     exit(1);
   }
 
-  setupWindow();
+  // Removed setupWindow() call
 
   runApp(
     ChangeNotifierProvider<PhotoSearchModel>(
@@ -48,17 +46,6 @@ void main() {
   );
 }
 
-const double windowWidth = 1024;
-const double windowHeight = 800;
-
-void setupWindow() {
-  if (!kIsWeb &&
-      (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
-    WidgetsFlutterBinding.ensureInitialized();
-    setWindowMinSize(const Size(windowWidth, windowHeight));
-  }
-}
-
 class UnsplashSearchApp extends StatelessWidget {
   const UnsplashSearchApp({super.key});
 

desktop_photo_search/fluent_ui/lib/src/widgets/split.dart

@@ -19,8 +19,6 @@ import 'package:flutter/material.dart';
 ///
 /// The user can drag the widget with key [dividerKey] to change
 /// the space allocated between [firstChild] and [secondChild].
-// TODO(djshuckerow): introduce support for a minimum fraction a child
-//                    is allowed.
 class Split extends StatefulWidget {
   /// Builds a split oriented along [axis].
   const Split({
@@ -125,12 +123,6 @@ class _SplitState extends State<Split> {
       });
     }
 
-    // TODO(https://github.com/flutter/flutter/issues/43747): use an icon.
-    // The material icon for a drag handle is not currently available.
-    // For now, draw an indicator that is 3 lines running in the direction
-    // of the main axis, like a hamburger menu.
-    // TODO(https://github.com/flutter/devtools/issues/1265): update mouse
-    // to indicate that this is resizable.
     final dragIndicator = Flex(
       direction: isHorizontal ? Axis.vertical : Axis.horizontal,
       mainAxisSize: MainAxisSize.min,

desktop_photo_search/fluent_ui/lib/unsplash_access_key.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO: Retrieve an API Access Key from https://unsplash.com/developers
+// To use this sample: Retrieve an API Access Key from https://unsplash.com/developers
 const String unsplashAccessKey = '';
 
 // The application name for the above API Access Key.